老谢博客

yum -y install gcc glibc glibc-common gd gd-devel php openssl-devel httpd
useradd -m nagios     #添加一个名为nagios的用户来运行nagios 
usermod -a -G nagios apache    #将运行apache用户apache加入nagios组
wget http://ssh.xj123.info/monitor/nagios-3.5.0.tar.gz
tar -zxf nagios-3.5.0.tar.gz
mkdir /etc/httpd/conf/extra  //用来存放关于nagios的http配置文件
cd nagios
./configure --prefix=/usr/local/nagios/ --with-comman-group=nagios --with-httpd-conf=/etc/httpd/conf/extra/ //指定安装目录及用户、组和http的配置目录
make all&&make install
make install-init;make install-config;make install-commandmode;make install-webconf      //初始生成启动脚本、配置文件、命令配置模块和httpd的配置文件

wget http://ssh.xj123.info/monitor/nagios-plugins-1.5.tar.gz
tar -zxf nagios-plugins-1.5.tar.gz
cd nagios-plugins-1.5
./configure --with-nagios-user=nagios --with-nagios-group=nagios --prefix=/usr/local/nagios/   //指定安装目录及用户和组
make all&&make install

htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin   //创建登陆用户名nagiosadmin及密码,为web登陆时的用户名和密码 
vim /etc/httpd/conf/httpd.conf #添加如下行，让nagios.conf生效
 
Include conf/extra/nagios.conf

chkconfig --add nagios
chkconfig nagios on
chkconfig httpd on
service nagios start
service httpd start

useradd -s /sbin/nologin nagios //添加nagios用户
cd /usr/local/src
tar zxvf nagios-plugins-1.4.16.tar.gz
cd nagios-plugins-1.4.16
./configure --with-nagios-user=nagios --with-nagios-group=nagios --prefix=/usr/local/nagios/   //指定安装目录及运行该软件用户和组
make&&make install

wget http://nchc.dl.sourceforge.net/project/nagios/nrpe-2.x/nrpe-2.14/nrpe-2.14.tar.gz
tar -zxf nrpe-2.14.tar.gz
cd nrpe-2.14
./configure --with-nagios-user=nagios --with-nagios-group=nagios --prefix=/usr/local/nagios/
make all
make install-plugin;make install-daemon;make install-daemon-config
ls /usr/local/nagios/libexec/ //验证安装

cd /usr/local/nagios/
vim etc/nrpe.cfg
 
#找到allowed_hosts添加服务器端ip：allowed_hosts=127.0.0.1,23.监控服务器ip
 
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg –d  //启动NRPE守护进程
netstat -utpln |grep nrpe        //查看nrpe进程是否已正常启动
 
    tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN 17619/nrpe
 
echo "/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d" >>/etc/rc.local     //添加nrpe为开机自动启动 
/usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 
    NRPE v2.14    //nrpe测试结果，此结果为nrpe已经正常工作了

vim /usr/local/nagios/etc/nrpe.cfg
 
    command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10 #监控登陆的用户数量
    command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20 #监控CPU的负载
    command[check_sda2]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda2 #监控磁盘利用率，这里的sda2必须是实际的硬盘分区，可使用fdisk –l查
    command[check_swap]=/usr/local/nagios//libexec/check_swap -w 20 -c 10 #监控交换空间
    command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z #监控进程中的僵尸进程
    command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200 #监控所有进程
 
    注意：command后面括号中的内容就是定义的变量，变量名可以任意指定，只需和服务器配置文件中的一致即可

wget http://ssh.xj123.info/monitor/nrpe-2.14.tar.gz
tar -zxf nrpe-2.14.tar.gz
cd nrpe-2.14
./configure --with-nagios-user=nagios -with-nagios-group=nagios --prefix=/usr/local/nagios/
make all;make install-plugin ; make install-daemon;make install-daemon-config   //将check_nrpe插件安装到/usr/local/nagios/libexec/目录下
/usr/local/nagios/libexec/check_nrpe -H 客户端ip
 
    NRPE v2.14 //该结果表示能与客户端通讯

cd /usr/local/nagios/etc/objects
vim host.cfg
 
    define host{
        use linux-server
        host_name slaves
        address 192.168.8.15
    }

# vim services.cfg #定义要监控的服务
    define service{
        use local-service
        host_name slaves
        service_description http
        check_command check_http
    }

vim commands.cfg #定义check_nrpe监控命令
    define command{
        command_name check_nrpe
        command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
    }

cd /usr/local/nagios/etc
vim nagios.cfg
    cfg_file=/usr/local/nagios//etc/objects/host.cfg
    cfg_file=/usr/local/nagios//etc/objects/services.cfg

vim contacts.cfg
    email test@test.com ;     #请修改为自己的邮箱地址

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg #检测配置文件是否正确
 
    Total Warnings: 0
    Total Errors: 0 #结果表示配置无错误
 
service nagios restart #重启Nagios服务